Machinist at Nickerson Company running a state-of-the-art CNC machine.
Computer Numerical Control Machine (CNC) at Nickerson
Impeller wear ring
Vertical Lathe
Parley’s Water Treatment Plant. Photo credit SLCdocs.com
CNC machine, where computers are used to control the movement and operation of the mills, lathes, and other cutting tools.
“NSF/ANSI 61.”Ā NSF RSS. The Public Health and Safety Organization, n.d. Web. 07 June 2017.
Figure 1. The general arrangement of a three phase waveform.
Bowl wear ring
Schlumberger Pump Assembly
National Pump Vertical Turbine Pumps, API 610
Figure 3. Three phase power has three identical sine waves overlapping at an offset of 2Ļ/3 radians or 120°. When one phase reaches an x-intercept or node the next phase is only 30° and approximately 5.6 milliseconds from reaching its crest.
Figure 2. A simple sine wave with a period of 360° and an amplitude of 1. In single phase power the x-intercepts are 180° from each other. A full period is 360°. A single phase motor has a crest approximately every 16.5 milliseconds giving the motors a tendency to vibrate more, which may contribute to a shortened bearing life.
Utah Lake Cascade Pump
Utah Lake Cascade Pump
Model 342A Single Stage End Suction
Well Pump Installation
Vertical Turbine Pumps, Deep Well
Gorman-Rupp SF SeriesĀ® Submersible Solids-handling Pump
Impeller wear ring
Computer Numerical Control Machine (CNC) at Nickerson